Trends and characteristics of international migratin since 1950. 

 - New York :  DESA ,  1979 
 - vi, 172p.  ill.;  30 cm. 
 - Demographic studies .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Migration<br/>International migration
<br/><br/><label>Dewey Class. No.: </label>312.3  / DESA